<template>
    <div style="border: 1px solid #ccc;">
        <Toolbar
            style="border-bottom: 1px solid #ccc"
            :editor="editor"
            :defaultConfig="toolbarConfig"
            :mode="mode"
        />
        <Editor
            style="height: 500px; overflow-y: hidden;"
            v-model="html"
            :defaultConfig="editorConfig"
            :mode="mode"
            @onCreated="onCreated"
        />
    </div>
</template>

<script>
import { Editor, Toolbar } from '@wangeditor/editor-for-vue'
import { Message } from 'element-ui';

const max_file_size = 1 * 1024 * 1024;

export default {
    props: ['value'],
    components: { Editor, Toolbar },
    data() {
        return {
            editor: null,
            html: "",
            toolbarConfig: { },
            editorConfig: { 
                placeholder: '请输入内容...',
                MENU_CONF: {
                    uploadImage: {
                        server: '#',
                        maxFileSize: max_file_size,
                        base64LimitSize: max_file_size,
                        onError(err) {
                            Message.error('上传图片大小不能超过1MB');
                        },
                    }
                } 
            },
            mode: 'default', // or 'simple'
        }
    },
    watch:{
        value: {
            handler(value){
                this.html = value;
            }
        },
        html:{
            handler(html){
                this.$emit('update:value',html);
            }
        }
    },
    mounted() {
    },
    methods: {
        onCreated(editor) {
            this.editor = Object.seal(editor) // 一定要用 Object.seal() ，否则会报错
        },
    },
    beforeDestroy() {
        const editor = this.editor
        if (editor == null) return
        editor.destroy() // 组件销毁时，及时销毁编辑器
    }
}
</script>

<style src="@wangeditor/editor/dist/css/style.css"></style>